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Cup Chucks & More
3D printed tools and accessories for all your tumbler making needs.
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Any order over $100.00 ships free! Use Code: FREESHIP when checking out to apply the discount.

Cup Chuck Sizes

Threaded Rod This Cup Chuck size will work with a standard 5/16th threaded rod. This is the same rod the Spinit Turner uses.

1/2in PVC This Cup Chuck size will work with standard 1/2in pvc(22mm) Be sure to measure the OUTTER diameter of the pvc to ensure correct measurements.

ROTISSERIE ROD This Cup Chuck size will work with any standard 5/16th rotissrie rod. Pictured is a rod from the Charbroiler rotisserie kit.

3/4in PVC This Cup Chuck size will work with standard 3/4in pvc(27mm). Be sure to measure the OUTTER diameter of the pvc to ensure correct measurements.

Custom Sizing

While we offer a large variety of Cup Chuck sizes, we do not have an insert for every size/style cup. If you are looking for an insert that is not listed, please feel free to message us to create a custom insert for you!


** HIGHLY RECOMMENDED** I wish I could give them more than 5 stars. Second order from them and just as impressive, if not more! I super appreciate the additional ones since they are so tiny! It fits perfectly!! Thank you so much!
Excuse my messy work space but I LOVE THE UPGRADE KIT! My true 32 sits straight as a board!! Pro tip! If u don't want to drill into your counter just lay down some metal sheets and attach magnets to the kit. Works like a dream! I like to move my turner's as I work because my space isn't big enough so this allows them to be able to be moved but not tip over! I will be buying another kit soon to upgrade my 3rd spin it!
Absolutely love their cup inserts. They have the perfect sizes for what I need and are always ready to help with the questions I have. I would recommend them to anyone who makes cups! Slowly fading out my footballs with their inserts and I can’t wait to order more.
have tried the footballs, the pool noodles the foam and of course my own duct tape contraptions and these are the BEST!!! no more making sure my pvc and foam are in the right position these keep them the perfect level! will be adding more to my collection for sure


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